Thunderbolt Horror

[SouthDakotaBoy2009]

Found this from Ian

WARNING MAY NOT BE SUITABLE FOR ALL VIEWERS
VIEWERS DISGRESSION ADVISED

http://www.youtube.com/watch?v=ycHMC_k_RnY

[Jpressman8]

Wow!!!!

[dilloncarpenter]

Man, the thunderbolt and the truck really took a beating!! Hope everyone was OK.

[Nelso90]

I think the truck is WAY worse off than your thunderbolt. You wouldn't imagine the beating I had to do on my horn to get a little bitty dent out.
You have to admit, the torque about the pivot point where the truck was holding the pole must've been very large.

[dilloncarpenter]

You have to admit, the torque about the pivot point where the truck was holding the pole must've been very large.

Oh yeah, definitely. With that kind of weight coming down at 9.8 meters a second, there's no stopping it. The best you could do is get out of the way.

[holler]

It didn't hurt the truck one bit. We turned it back over and went back to work with it.

This "incident" convinced me that if I'm going to stay in this business, I need to buy my own truck.

The t-bolt came out with only a dented rotator box. The truck didn't fall on top of the pole, the pole fell over to the side since there was some slack in the cable it was able to move out from under the boom.

But yeah, it was more of a case of operator failure than anything else.

[Nelso90]

Considering T=rXf,
it's a 40 foot pole, and that thing weighs 500 pounds. It's making about a 75 degree angle with the vertical when it lets go. T=rFsin(75)
I'd say there are almost 8000 foot-pounds there...
That's not even counting the weight of the pipe and the pole.

[holler]

Considering T=rXf,
it's a 40 foot pole, and that thing weighs 500 pounds. It's making about a 75 degree angle with the vertical when it lets go. T=rFsin(75)
I'd say there are almost 8000 foot-pounds there...
That's not even counting the weight of the pipe and the pole.

Yes, it's basic physics, and apparently my cousin didn't understand that. I've ran line trucks before (including this one) and it can be very dangerous if you dont' know what you are doing.

First of all, the pole was 45 foot tall

Second, with a truck like my cousins you are supposed to work off the BACK of the truck, not the side.

Third, he attempted to lay the pole down with the boom FULLY extended. Bad move, that gives the pole way too much leverage against your truck and adding height to it makes it even worse. I always boom in before laying a pole down or lifting one off the ground to set.

Fourth, he didn't have the cable tied in the right spot, so the pole was way too tail heavy and didn't slide back any to stay under the winch. So this meant the cable attachment point kept getting further and further away from the winch head, giving the pole even MORE leverage.

All this equals an upset GMC.

[red04stanggt]

lmao...wow